Sep 24, 2026
What is Crawl4AI? The open-source AI crawler
Crawl4AI is an open-source Python crawler that turns web pages into Markdown for LLMs. What it can change, what your site sees, and how to assess it.
Frederick Jahn
Scraping and automation tools
One guide per tool: what it does, how its requests look from the site it visits, and which evidence separates it from an ordinary visitor.
Sep 24, 2026
What is nodriver? Python CDP automation explained
nodriver is an async Python library that drives Chrome over the DevTools Protocol without Selenium or WebDriver. What it changes and what still gives it away.
Frederick Jahn
Sep 24, 2026
What is Stagehand? The AI browser automation SDK
Stagehand is Browserbase's open-source SDK for driving Chromium with natural-language steps. How it works, where it runs, and what a target site can see.
Frederick Jahn
Sep 3, 2026
Camoufox in 2026: does it beat bot detection?
Camoufox is an open-source Firefox fork that spoofs fingerprints in C++. What it changes, the leaks its docs admit, and how Centinel detected it in a 2026 test.
Frederick Jahn
Sep 3, 2026
Kernel browser (kernel.sh): cloud Chromium
Kernel runs on-demand cloud Chromium for web agents. How it works, what its stealth mode changes, and how Centinel detected it in a September 2026 test.
Frederick Jahn
Sep 3, 2026
Playwright Stealth: what it patches and misses
playwright-stealth hides navigator.webdriver and other simple automation tells. What the Python package patches, what it cannot hide, and how sites detect it.
Frederick Jahn
Sep 3, 2026
Ulixee Hero: the scraping browser and detection
Ulixee Hero is a Chrome-based scraping browser that emulates an ordinary browser. What its emulation covers and how Centinel detected it in a 2026 test.
Frederick Jahn
Sep 3, 2026
What is Zyte API? Scraping modes and detection
Zyte API fetches raw HTTP, runs managed browsers and extracts structured data. What each mode looks like to a target site, and how to assess it.
Frederick Jahn
Sep 2, 2026
Browser Use: how the AI browser agent gets caught
Browser Use lets a language model drive a real browser. How the agent works, what your logs see, and how Centinel detected it in a September 2026 test.
Frederick Jahn
Sep 2, 2026
What is Browserbase? Cloud browsers for AI agents
Browserbase rents remote Chromium sessions to AI agents over an API. How sessions work, what a target site sees, and how Centinel detected it in a 2026 test.
Frederick Jahn
Sep 2, 2026
What is Firecrawl? How it scrapes and is detected
Firecrawl turns web pages into Markdown or structured data for AI agents. How it fetches, what your site sees, and how Centinel detected it in a 2026 test.
Frederick Jahn